Home / 3,185.91-4,778.85-1,798.62

Finding the Fourth Proportional to 3,185.91, 4,778.85 and 1,798.62

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Solution

The fourth proportional to 3,185.91, 4,778.85 and 1,798.62 is: 2,697.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.91 : 4,778.85 = 1,798.62 : x
  2. Step 2: Convert to fraction form
    3,185.91/4,778.85 = 1,798.62/x
  3. Step 3: Cross multiply
    3,185.91x = 4,778.85 × 1,798.62
  4. Step 4: Simplify right side
    3,185.91x = 8,595,335.19
  5. Step 5: Solve for x
    x = 8,595,335.19/3,185.91
  6. Step 6: Final answer
    x = 2,697.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.